Home / 28,868.74-43,304.32-9,146.86

Finding the Fourth Proportional to 28,868.74, 43,304.32 and 9,146.86

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Solution

The fourth proportional to 28,868.74, 43,304.32 and 9,146.86 is: 13,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.74 : 43,304.32 = 9,146.86 : x
  2. Step 2: Convert to fraction form
    28,868.74/43,304.32 = 9,146.86/x
  3. Step 3: Cross multiply
    28,868.74x = 43,304.32 × 9,146.86
  4. Step 4: Simplify right side
    28,868.74x = 396,098,335.91
  5. Step 5: Solve for x
    x = 396,098,335.91/28,868.74
  6. Step 6: Final answer
    x = 13,720.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.